When police arrived on scene two minutes later, they found Dixon with obvious injuries "that are consistent with being run over by a vehicle or blunt trauma," according to a Loveland Police Department news release. He was pronounced dead on the scene.

Police thought the occupants of the vehicle might have been involved in or witnessed the death, police said, but after identifying them, they no longer do, according to a Friday afternoon update.

Anyone with information about the case can call Detective Brad Templeman at 970-962-2290.

The parking lot — which served as off-site parking and a shuttle stop for the nearby Thunder in the Rockies motorcycle rally — was well-lit and staffed with security personnel at the time of the incident, according to police.

The Thunder in the Rockies Bike Rally is an annual Labor Day weekend motorcycle rally hosted at Thunder Mountain Harley-Davidson in Loveland, which is located near Interstate 25 and Crossroads Boulevard.